My contacts are at best, disorganised. An automatic email signature, in plain text, which lists direct dial and alternate phone numbers, alongside the position and company of the sender is my first port of call when my contacts list fails me.
Perhaps a little more information than that. I disagree with an email signature which regularly causes printing to span two pages, is attached to every message sent, and which contains images. Sometimes in corporate land these atrocities cannot be avoided.
Mobile specific signatures? I have one for both work and personal:
“Please excuse my brevity and typo’s, this message was sent via mobile.”
Some recipients think I write that after every email sent from my phone. Some don’t understand what “brevity” means. I like to think it excuses my email for being inarticulate and clumsy, by explaining it wasn’t written in ideal conditions.
Attach your automated email signature to the first message in a thread of email, not to replies, and preface it with your personal sign off of the message.